Lakebogaite is a rare phosphate mineral primarily known from the granite quarries at Lake Boga, Australia. It typically occurs as small, tabular, yellow to brownish-orange crystals or radiating sprays found in oxidized cavities of pegmatites.
Is this lakebogaite?
5-step field checkRun through these checks against the specimen in your hand. The more boxes tick, the more confident the ID.
- 1Test the hardnessTry to scratch lakebogaite with a known reference. Lakebogaite sits at Mohs ~3, softer than the next harder reference, harder than the previous one.
- 2Check the streakDrag the specimen across an unglazed porcelain plate. Streak: pale yellow.
- 3Read the lusterHold the specimen under a strong light. Luster: vitreous.
- 4Match the color rangeCompare against the expected color range: bright lemon yellow.
- 5Look at form & habitCrystal system: monoclinic. Typical habit: blocky, euhedral crystals.
Often confused with
Lakebogaite vs. its common look-alikes, and how to tell them apart in the field.
Often found alongside lakebogaite
Minerals reported to co-occur with lakebogaite. Spotting these in float or country rock is a strong cue you are in the right ground.
All properties
- Chemical formula
- NaCaFe₂H(UO₂)₂(PO₄)₄(OH)₂(H₂O)₄·3H₂O
- Mohs hardness
- ~3
- Density
- 3.485 g/cm³
- Colors
- Bright lemon yellow
- Streak
- Pale yellow
- Luster
- Vitreous
- Transparency
- Transparent
- Crystal system
- Monoclinic
- Crystal habit
- Blocky, euhedral crystals
- Cleavage
- Indistinct normal to [010]
- Rarity
- Rare
- Uses
- Collector
- Host rock
- In miarolitic cavities and on joint surfaces in a weathered uranium and fluorapatite-bearing pegmatitic granite
Where rockhounds find lakebogaite
Classic worldwide localities
- Lake Boga quarry, northern Victoria, Australia
Field-hunting tip
Where it forms: In miarolitic cavities and on joint surfaces in a weathered uranium and fluorapatite-bearing pegmatitic granite. If you start seeing meurigite-na, torbernite, saléeite in float, you are in the right ground. Typical habit: blocky, euhedral crystals. Train your eye for that shape before scanning the outcrop.




